Network security: Allow LocalSystem NULL session fallback

Network security: Allow LocalSystem NULL session fallback

Allow NTLM to fall back to NULL session when used with LocalSystem.

The default is TRUE up to Windows Vista and FALSE in Windows 7.

Policy path: 

Computer Configuration\Windows Settings\Local Policies\Security Options

Supported on: 

At least Windows 7, Windows Server 2008 R2

Registry settings: 

MACHINE\System\CurrentControlSet\Control\Lsa\MSV1_0\allownullsessionfallback

Reboot required: 

No